Reproduced with permission from the original text* of Marcus Zulian Teixeira, MD, BC Homeopathy; PhD, Medical Sciences; Professor of “Fundamentals of Homeopathy”, School of Medicine, University of São Paulo; Member of Technical Chamber for Homeopathy, Regional Medical Council of the State of São Paulo (CREMESP, Brazil). Upon discussing homeopathy in various settings, we often find that people react with mistrust, raise doubts about its scientific grounds and therapeutic validity. Widely disseminated in the mass media, in an indistinct and reiterated manner, the fallacy – or post-truth – asserting “there are no scientific evidence for homeopathy” is incorporated into the collective subconscious, which thus